Pacing yourself is so important while making art. I have noticed that when I rush myself and push myself and hurt myself in order to write more, I produce poor work that I have to fix later, hereby spending more time on it than I would've if I have not forced myself to hurry in the first place.
It's a simple logical equation, and yet I have to remind myself to stop. Stop. STOP. TAKE A DAMN BREAK AND CONTINUE TOMORROW.